19901266

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{129229}}^1$

素因数の和:129249

約数の個数: 16

約数和(自身を含む): 37218240

約数和(自身を除く): 17316974

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 129229, 258458, 904603, 1421519, 1809206, 2843038, 9950633, 19901266]

約数ペア:

[(1, 19901266), (2, 9950633), (7, 2843038), (11, 1809206), (14, 1421519), (22, 904603), (77, 258458), (154, 129229)]